Gin rib



June 26, 1923.

1,469,228 F. B. CUMPSTON GIN RIB Filed Sept. 17, 1921 WITNESSES ATTOR/JEVS Fredemck B. Cumpston.

Patented June 26, 1923.

I warren stares PATENT orricn.

FREDERICK B. oUMrsTon, or BLOOIVIING, rnxn's.

GIN RIB.

Application filed September 17, 1921. Serial No. 501,394.

This invention relates to cotton gins and more particularly to the meansfor increasing the ginning capacity of the. same.

An important object is to provide a cotton gin having a plurality ofrevolving ribs which move between the gin saws and thereby double theginning capacity of the gin.

Further the invention aims to provide a rotary rib for gin saws whichdoes not affeet the usual operation of the gin and which on the otherhand will substantially increase the cleaning capacity of the machine.

Other objects and advantages of the invention will be apparent duringthe course of the following description.

In the accompanying drawing forming a part of this application and inwhich like numerals are employed to designate like parts throughout thesame,

Figure 1 is a detail vertical sectional view through a gin having theimproved saw cleaning means.

Figure 2 is a detail transverse sectional view through the brush of thegin, the view illustrating the saw cleaning means. i

Figure 3 is a side elevation of one of the cleaning elements detached.

In the drawing wherein for the purpose of illustration is shown apreferred embodiment of the invention the numeral 5 generally designatesa gin of the usual construction and which is provided with a pluralityof spaced parallel saws 6 having their edges formed with teeth 7 adaptedfor ginning cotton in the usual manner. A plurality of stationary ginribs 8 are arranged between the disk-shaped saw blades 6 and are securedat their ends to the frame as indicated at 10. The usual brush 12 isarranged rearwardly of the saws 6 and is provided with radial bristles14 which contact with the teeth 7 and thereby remove the cotton from thesame.

In operation the stationary ribs are located on opposite sides of thesaws 6 and the detaching of the cotton fibre takes place at the pointwhere the rib heads 23 are in ginningengagement with the several saws.

, In order to increase the ginning capacity.

of the gin I have provided a plurality of rotary members 15 each ofwhichyis provided with a plurality of radially arrangedribs 22. Therotary members which are generally designated by the numeral 15 extend,j

betweenthe gin sawsG and thereby increase the ginning capacity of thegin to a substantial extent. The ginning capacity of the saws isapproximately doubled by the use of the improved revolving rib which aspreviously stated and which as illustrated in Figure 1 extends betweenthe saws.

Each rotary member 15 is provided with a hub 16 mounted upon a shaft 17and keyed or otherwise secured thereto. The shaft 17 is journaled to theends of the breast 18 of the gin and is provided with a pulley 19operated by a belt 20 from any suitable source of power.

It will be seen that the terminal portions of the radially arranged ribs22 are provided at their ends with laterally project ing enlargements 23which move between the saws and thereby double the ginning capacity.

In operation the speed of the revolving ribs is about 112 revolutionswhile the speed of the saws is about e00 revolutions and by reference toFigure 1 it will be observed that theadjacent portions of the revolvingribs and saws rotate in the same direction.

The purpose ofthe revolving ribs is to turn the roll of cotton in thegin breast.

In the cotton gins now in use, the saws pull the cotton against thestationary ribs and this sudden jerk causes the fiber to be broken. I t

In. accordance with this invention the ribs rotate with the saws, but ata different speed and consequently the fiber is not torn.

In use the cotton may be fed into the hollow breast 175 and the pickerroller176 feeds the cotton to the saws which gradually pull the cottonup into the gin breast and through the huller ribs'178. This removes thehulls if any from the cotton.

The clean cotton may be fed'in at the top of the gin breast. It is thusseen that the into the breast.

With reference to the foregoing description taken in connection with theaccom- ,.panying drawing, it will be see-n that the increase the cuttingcapacity and to prevent napping of the cotton as well as to gin with aslacker roll.

I claim I 1. The combination witha gin having a plurality of gin saws,of stationary ribs arrangedbetween said saws, and rotatabler'ibs'eXtended between said saws.

2. The combination'with -agin having a plurality of gin saws, ofstationary ribs arranged between said saws, rotatable ribs 7 extendedbetween said saws, saidrotatable ribs being provided with enlarged heads3'. The combination with a plurality of gin" saws, of stationary ribsextended between said saws, and rotatable ribs extendedb'etween saidsaws adjacent" said stationary ribs and provided with radially arrangedmembers.

' 4; The combination; with a plurality of gin saws, of stationary ribsextended between said saws, and rotatable ribs extended between saidsaws adjacent said stationary ribs and provided With radially arrangedmembers, said radially arranged members being provided with enlargementsmovable between said saws.

shaft supporting said members, and o eme ing means connected to saidshaft.

FREDERICK B. OUMPSTON.

